Flexible pipe connection with safety valves



Feb. 3, 1931. GROSS 391,447

FLEXIBLE PIPE CONNECTION WITH SAFETY VALVES Filed April 11, 1928 Patented Feb. 3, 1 931 I UNITED STATES PATENT OFFICE JOHN B. GROSS, OF BROOKLYN, NEW YORK, ASSIGNOIB, OF ONE-FOURTH T0 JOSEPH W. GONNELLY, ONE-FOURTH T0 WILLIAM A. CONNELLY, AND ONE-FOURTH TO'ANNA E. CONNELLY, ALL OF JERSEY CITY, NEW JERSEY FLEXIBLE PIPE QONNECTION WITH SAFETY VALVES Application filed April 11,

The invention relates to swivel pipe connections and has for its object the provision of an improved pipe connection in combination with an uncloggable safety valve, for use in any pipe system transmitting high and low pressures.

These connections are free to revolve in both horizontal and vertical planes, are simple and durable in construction, unbreakable, indestructible,'and leak-proofin operation.

The invention consists of certain parts, details and combinations which will be described hereinafter and then be more speci fically defined in the claim at the end of the description.

Reference is to be had to the accompanying drawingsforining a part of this specification, in which similar characters of reference in' dicate corresponding parts in all the figures. Figure 1 is a plan view of several swivel pi e connections and safety valve. 1

igure 2 is a front elevationof Figure 1.

Figure 3 is a section of a single swivel pipe connection with safety valve attached,-show ing details of construction.

Referring now more particularly to the drawings, it will be apparent that there is shown a cylindrical block 1 havin'gconnected therewith a pipe F which communicates with 'a bore in' said block. A steam-proof and water-proof packing 4 is arran ed on a 1 threaded end of block 1, and sai packing 4 is pressed tightly against a shoulder formed on theblock by a nut 5. The. packing 4 is ti htly secured in place so that it will revolve ,Wltll the block 1. The cylindrical block 1 with the packing 4fits in the boring of fixed block 2.'- The large shoulder of block 1 fits in a recess in the end or block 2.

Block 1 and block 2 are coupled by'a union nut 3 which screws on the threaded open end of block2 and resses a washer 8 against the shoulder on'blbck 1. Union nut 3 is provided with equally spaced cylindrical grip holes for wrench apphcation and is prevented from turning by a set-screw '6. In asquare portion block2 has tapered tapped holes -(Fi res 1, 2 and3) in which ipes and safety va ves may be screwed or w ch may 1928. Serial No. 269,291.

be glosed if necessary by plugs 9 when not use v A safety valve is connected with the block 2 in communication with one of the holes there- ,of. This safety valve consists of a connecthole and the groove in the conical boring of body 12 communicate with each other.

Tightly fitting into the body 12 is a conical plug 13, shown in Figure 3, having a central ore drilled therein throughout its entire length and threaded on both ends. Plu 13- in its conical portion is provided wit a groove in registry with a o'ove provided in the valve body 12,'and sa1d plug also has a hole in communication with its central bore and its groove. Plug 13 is held in the valve body 12 by lock nuts 19 and 20 threaded on its smaller end. The upper end portion of the bore in the plug 13 is tapped to receive a regulating spindle 14 which may be screwed in or out to'prevent the closin of a check ball 16, which coacts with a ho ow plug 17 in the oppositeend of, said bore to control the bore in said plug. r r

When swivel pipe connections, constructed and assembled as described above, are attached-toany piping system used for the flow of fluids or gases in the transmission of any and all pressures then the direction of movement of pipe 7 may be changed in either a clockwise or counterclockwise direction withouter interruptingl or disturbing the flow. This movement owever, gives direction chan e in one plane only, hence if change of flow is desired in planes perpen 'cular to the line may take any number of turns in any point producing a perfect flexible tine eliminating entirely possible distortion or breakage.

To prevent at any time possible back flow of liquid or gas caused by disconnection of pipes or any eventual rupture in the pipes during operation, the safety valve is attached to the swivel pipe connections nearest the device to which pressure is being transmitted.

Figures 1 and 2 illustrate a method of connection to one safety valve from two sources of pressure. However, the source of pressure may be reduced to one with one safety valve or it may have two safety valves or more according to the number of devices to which. it is necessary and desirous to transmit pressure.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent:

The combination of a valve having a casing and a plug in said casing, said plug be ing provided with a passage which extends therethrough, said casing haviu an inlet which communicates with sai means which associates the casing with said EI Iu'g for rotary movement thereon, said plug ing provided with means for fixedly connecting the plug with a suitable conduit with the passage in the plug in communication with the conduit, and a jointed conduit of relatively movable sections connected with the inlet of said casing, whereby the position of the last mentioned conduit may be changed without detaching it from the valve plug or casing.

Signed at Jersey City, in the county of Hudson and State of New Jersey, this 9th day of April, A. D. 1928.

JOHN B. GROSS.

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